Automobile lift



v. EDLER AUTOMOBILE LIFT July 2, 1929.

3 Sheets-Sheet Filed Sept. 29, 1926 mvzwrox. VERNON EDLER ATTORNEY.

July 2, 1929. v. EDLER 1.719538 AUTOMOBILE LIFT Ati-LX I July 2, 1929. v. EDLER AUTOMOBILE LIFT Filed Sept. 29. 3.1926

WITNESSES:

3 Sheets-Sheet 3 INVENTQR.

VERNON EDLER @WW l r AT RNEY.

Patented July 2, 1929.,|

l UNITED STATES VERNON IEDLEB, F LOS ANGELES, CALIFORNIA.

1,719,538 PATENT OFFICE.

AUTOMOBILE LIFT.

Application filed September 29, 1926." Serial No. 138,483.

My invention relates to improvements in l auto lifts in which there are two vertical cylinders arranged below a floor and each having its lower end connected with an oil tank adopted to be connected with a compressed. a1r supply, pistons slidably arranged in the cylinders and provided with tubular stems having on their upper ends head caps carrying cross bars havin mounted on their outer ends two beams eac having two slots in which the ends of the cross bars are arranged, and twojrollers mounted on each end of each cross bar and adopted to carry the beams when the latter move endwise on the cross bars. L

The object of my invention is to provide a mechanism to be used in garages for lifting automobiles so repairmen can work on them to much better advantage.

Description of figures on drawings I attain the results mentioned above by means of the mechanism illustrated in the accompanying drawings, in which- Fig. 1 is a side elevation of my auto lift shown partly in section;

Fig. 2 a view of the same showing the auto supporting frame in an elevated position;

Fig. 3 a top view of my auto lift;

Fig. 4; a detail view showing one of the cross bars, its four rollers, the ends of the beams and a fragment of the upper end of a piston stem and its head cap; and

Fig. 5 a side view of the stern cap.

Detail description of the drawings.

' In the drawings like reference numerals referv to the same parts throughout the several views. I

Referring to the drawings in detail- The reference numeral 1 represents the cement floor which supports the mechanism. Near each end of the mechanism is a cylinder 2 having at its upper end a flange 3 'flush with the top of the floor. The lower end of each cylinder has a cap 4 and is connected by a pipe 5 with an oil tank 6 having at its upper end an oil pipe 7 and a pipe 8 for connection with a compressed air supply.

Seated on the floor over each cylinder flange 3 is a flat ring 9 secured to the cement ioor by bolts 10. Interiorly fitting the upper end of each cylinder and the opening in the flat ring 9 is a tubular ring 11 having a flange 12 seated on the ring 9 and secured to the flange 3 by bolts 14.

Slidably arranged in each cylinder is a piston 15 carr ing two packing rings 16 and aving a tub ar stem 17 having onfits upper end a head cap 18 having therethrough a horizontal opening 19 in which there is n secured a cross bar 20.

On each side of the top of the mechanism is a T iron 21, herein referred to as a beam, because somethin other than T iron could be used, and having near its ends slots 22, 23 in which are arranged the ends of the cross bars 201v On each end of each cross bar. are two rollers 24, one on either side of the beam. Said rollers are adapted to engage the under side of the beam ianges and carry the weight of the beams..- Each pair of rollers is held in place by two pins 30.

At one end of each` beam its flanges are shown cut away and a reinforcing plate 26 secured to each-side of the beam. In the upper edges of each pair of the said plates and in the beam is a notch 27 having in its bottom a vertical slot 28. The beams are preferably connected by two braces 29 lto provide a rigid fraine.

In using the mechanism the operation is as follows:

The auto is driven lengthwise over the frame from left to right so the rearvaxle is directly over the notches 27 at the ends of the beams. Compressed air is then caused to enter the oil tanks thereby forcing the oil into the lower ends of the cylinders and raising the pistons and the frame. With the rear axle seated in the notches 27, the truss rods in the slots 28 and the front axle restn ing on the top of the beams the auto is ele- .vated to such height and position as will afford greatest convenience for the workman. When thus elevated the frame may be horizontal, or on an incline as indicated by the dotted lines Fig. 2. 'When one end of the frame -is elevated more than the other the ends of the cross bar at the higher end of the frame move away from the inner end of the slots in proportion to the incline,- the rollers carrying the load thus preventing friction between the cross bars and the upper edge of the slots. Being able to thus elevate an auto quickly is a great convenience when either repairing, cleaning or painting cars,

Both ends of each beam could be equipped with the reinforced plates 26 so an auto could if desired be driven over it from either direction.

One oil tank could be used in place of two in which case each cylinder would be connected with the same oil tank and means provided for controlling the flow of oil through each pipe together with means for regulating the passage of air into and out of the oil tank.

The ends of one cross bar could be arranged' in slots in the beams as shown and the ends of the other cross bar rotatable arranged in round openings, except that the slots in that case would need to be longer, than when four are used, to allow suiiicient movement of the bar ends when the frame is tilted. A

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is`

l. In an automobile lift, two vertical cylinders arranged below a floor, pistons slidably arranged in said cylinders and each provided with a stem having on its upper end a head cap having therethrough a horizontal opening, a horizontal cross bar secured in each of the horizontal openings in said head caps, two parallel beams each having a top flange on either side and each having two longitudinal slots in its vertical wall, the ends of the said cross bars being arranged in said slots, a roller rotatably mounted on each end of each cross bar on either side of the beam, said rollers engaging the under side of the said flanges and carrying the beams, the beams when raised being adapted to engage the under side of the axles of an automobilel and elevate the latter, two oil tanks arranged below the floor, means for connecting the oil tanks with the cylinders and a compressed air supply, and means for controlling the pressure in the oil tanks whereby the beams may be raised or lowered at will.

2. In an automobile lift, a floor having therethrough two vertical openings each having an annular groove at its top, cylinders suspended in said floor openings and provided at their upper ends with exterior annular flanges seated in said annular grooves, -flat rings seated on said cylinder' flanges and having their outer edges overlapping and secured to the oor, tubular rings interiorly fitting the openings in the said flat rmgs and the upper ends of the cylinders and having at their' upper ends annular flanges seated on the said flat rings and secured to the cylinder flanges by bolts passed through openings in the tubular ring flanges and the fiat rings and the cylinder flanges, pistons slidabl arranged in said cylinders and provided with stems interiorly and slidably vfitting the said tubular rings, head caps `and lowered as desired.

8. In an apparatus for lifting automobiles, a floor provided with an opening having an annular groove at its top, a cylinder provided at its upper end with an annular l flange fitting said annular groove, a flat ring seated on said cylinder flange and having its outer edge overlapping and secured to the floor, a tubular ring interiorly fitting the opening in the flat ring and the upper end of the cylinder and having at its upper end an annular flange seated on said flat rings and secured to the said cylinder flange by bolts passed through openings in the tubular ring iange and the flat ring and the cylinder iange, a piston arranged in the cylinder and provided with a stem interiorly fitting the tubular ring, a cross bar secured to the upper end of the piston stem, two

beams carried by the cross bar and adaptedto lift an automobile, an oil tank connected with the cylinder and with a compressed air supply, and means for controlling the pressure in the oil tank and cylinder whereby the beams may be raised and lowered.

. 4. In an apparatus for lifting automobiles, means for automobiles to travel on, two vertical cylinders arranged below said means and provided with a piston'having a stem, a cross bar secured to the upper end of each piston stem, two beams mounted on the ends of the cross bars and each having on either side at its top a flange and each having in its vertical wall near one end a longitudinal slot, the ends of one cross bar being arranged in said slots, a roller rotatably mounted on each-end of the latter cross bar on either. side of each beam and adapted to engage the under side of the flanges on either side of the beam and carry the latter,

ytwo oil tanks havingt eir lower ends connected with' the lower ends of the cylinders, means for connecting the upper ends of the oil tanks with a compressed air supply, and means for controlling the pressure in the tanks and cylinders whereby an automobile above the apparatus may be raised and lowered by the said beams.

In testimony whereof I aiix my signature.

VERNON EDLER. 

